December 2, 2020 (Wednesday)
We-A: Sensing III
Presider: Takayuki Shima (AIST, Japan)
We-A-01
9:00

InvitedSilicon-plasmonic-integrated sensors for Lab-onChip application
Masanobu Haraguchi1, Shun Kamada1, Salah E.
El-Zohary2, Hiroyuki
Okamoto3, Toshihiro
Okamoto1
1Tokushima

University (Japan), 2Tanta University(Egypt), 3National Institute of Technology, Anan
College (Japan)

We proposed a Silicon-plasmonic-integrated
sensors for Lab-on-Chip application. We
numerically and experimentally observed theoptical characteristics of surface plasmon polariton(SPP) rectangular resonator connected SPP
waveguides.
Simple rectangular resonatorproviding two types of SPP resonance modes
enable high sensitivity of molecular detection for
Lab-on-Chip application.
We-A-02
9:25

Invited
Velocity distribution measurements based on
differential laser Doppler velocimetry
Koichi Maru
Kagawa University (Japan)
Velocity distribution measurement techniques using
differential laser Doppler velocimetry are presented.
The principle is based on non-mechanical scanningand simultaneous multipoint measurement using
spatial encoding. Several methods for measuring 1dimensionaland2-dimensionalvelocity
distributions are described.

We-A-03
9:50

Detection of Pitch Uniformity of Microstructureusing Simple Light Illumination
Toshiki Azuma, Kanami Ikeda, Osanori Koyama,
Makoto Yamada
Osaka Prefecture University (Japan)
The pitch of the grating structures may not beuniform. It could lead to equipment malfunction. In
this study, we simulate reflected light from gratingstructures to investigate the possibility of detecting
grating pitch uniformity using a simple system
configuration.
We-A-04
10:05

Electro-Optic Probe Using KTa1-xNbxO3 for
Low-Frequency MeasurementKeita
Takano1, Mitsuru
Shinagawa1, Jun2
Katsuyama , Yoshinori Matsumoto2, Shogo Yagi3,Takafumi Ogawa3
1HoseiUniversity (Japan), 2Yokogawa ElectricCorporation (Japan), 3NTT Advanced Technology
Corporation (Japan)

This paper describes the feasibility of an EO probe
using a KTN crystal for measuring low frequency
signals. The experimental results shows that theKTN crystal increases the sensitivity of the EO
probe and enables measurement of low frequency
signals.
10:20 - 10:35

Break

We-B: Nanophotonics and Plasmonics
Presider:We-B-01
10:35

Ryuichi Katayama (Fukuoka Institute ofTechnology, Japan)
InvitedHigh Dimensional Quantum
Meta-lens Array Optical Chip

Entanglement

L. Li1, Z. Liu2, X. Ren3, S. Wang2, M.-K. Chen1, V.C. Su4, C. H. Chu5, H. Y. Kuo6, B. Liu3, W. Zang2,G. Guo3, L. Zhang2, Z. Wang2, S. Zhu2, D. P. Tsai1
1The

Hong Kong Polytechnic University (Hong2NanjingKong),University(P.R.China),
3University of Science and Technology of China(P.R.China), 4National United University, Miaoli(R.O.C.), 5Academia Sinica (R.O.C.), 6National
Taiwan University (R.O.C.)

By integrating a meta-lens array with a nonlinear
crystal, we demonstrate a 100-path spontaneous
parametric down-conversion photon-pair opticalchip, which is promising for high-dimensional
quantum entanglement and multi-photon state
generations.

We-B-02
11:00

The Correlation between Electrical Properties
and Surface Plasmonic Properties on ITO Films
with diffraction grating
Nobutoshi Miyamoto, Kohei Funahashi, Noriyuki
Hasuike, Minoru Takeda
Kyoto Institute of Technology (Japan)
SPP mode along the ITO/air interface werediscussed for ITO films with different electric
proper-ties by using diffraction grating structure.

We-B-03
11:15

Significant enhancement of magneto-opticaleffect at ultraviolet wavelength using Nisubwavelength grating on SiO2/Ni structure
Yuusuke
Takashima, Masanobu
Yoshiki Naoi

Haraguchi,

Tokushima University (Japan)
Significant enhancement of magneto-optical (MO)effect was theoretically demonstrated using Nisubwavelength grating on SiO2/Ni. Electromagnetic
field simulated indicates that the concentrated
electric field at SiO2-Ni interface assisted
interaction between magnetized matter and light,
and our structure achieved 224 times greater
polarization rotation MO effect than that of bulk Ni.
We-B-04
11:30

Dimensional Characteristics of Guided-mode
Resonant Nanostructures
Akari Watanabe1, Junichi Inoue1, Kenji Kintaka2,Shanwen
Zhang3, Shogo
Ura1, Robert
Magnusson4
1Kyoto Institute of Technology (Japan), 2National

Institute of Advanced Industrial Science andTechnology (AIST) (Japan), 3Chinese Academy ofSciences (P.R.China), 4University of Texas (U.S.A.)
Guided-mode resonance shows different filtering
behaviors between one- and two-dimensional
grating structures. Reflection spectra are simulated
and discussed with dimensional transformation
between them by introducing intermediatestructures consisting of vertically-stacked differentdimensional gratings.

We-B-05
11:45

Transmission
andReflection
Coherent
Diffraction for High-accuracy Cross-sectional
Measurement by Soft X-rays
Tetsuya Hoshino1, Sadao Aoki1, Masahide Itoh1,
Motoharu Shichiri2, Hiroshi Itoh2
1University of Tsukuba (Japan), 2National Instituteof Advanced Industrial Science and Technology(AIST) (Japan)
This study is a cross-sectional shape measurementwith high accuracy in the plane including theoptical axis in soft X-rays. Conventionally, only aperiodic structure can be observed with theaccuracy of a few wavelengths. Our aim is an
isolated structure measurement and it has wide
applications including optical memory.
We-B-06
12:00

Evaluation of the Plasmon Resonance Antenna
with Bulls-eye Structures
Masahiro Deguchi, Genta
Takeda, Noriyuki Hasuike

Yonezawa, Minoru

Kyoto Institute of Technology (Japan)
We designed and fabricated bulls-eye plasmonicstructures that efficiently enhance the electric fieldin the central part by exciting surface plasmons in
the visible regions, and emitting light of theresonant wavelength from the central aperture withhigh directionality. We experimentally evaluatedthe characteristics and compared with FDTD
simulation results.
12:15 - 12:20

ISOM'20 Commemorative Photo

12:20 - 13:15

Lunch

We-C: Biological and Life Application II
Presider: Masanori Takabayashi (Kyushu Institute ofTechnology, Japan)
We-C-01
13:15

InvitedSecuring IoT Sensor Networks Based on LoRa
Shoichiro
NakayamaSeno, Akinori

Furuya, Hiroyuki

Tokushima Bunri University (Japan)
IoT sensor networks based on LoRa are being
deployed increasingly thanks to its relatively widerange. As LoRa becomes popular, security threats
like traffic analysis and localization will impose amajor issue. This paper proposes a new security
measure called address randomization in addition to
standardized encryption and message authentication.
We-C-02
13:40

Wearablebroadband
photo-thermoelectric
sensor sheet with flexible carbon nanotube thinchannel films for passive liquidity monitoring
Kou Li, Yukio Kawano
Tokyo Institute of Technology (Japan)
This paper reports wearable passive liquidity
monitoring with freely attachable broadband
sensitive photo-thermoelectric thin-film sensor
sheets. The device consists of bendable carbon
nanotube films, and can be smoothly patched onsterically curved liquid pipes. The proposed sensor
demonstrates
label-freephoto-sourcelessinspections of the glucose solution concentration
based on black-body radiation.

We-C-03
13:55

Dynamic Signal Sensing of Intra-bodyCommunication in Three Walking Persons
SotaroSawa, Mitsuru
Ashizawa

Shinagawa, Rikuma

Hosei University (Japan)
This paper describes a signal sensing for three
walking persons in intra-body communication byusing a dynamic signal sensing system. The power
margin is proposed in a situation of three walking
persons for preventing the system from wrong
authentication caused by unintentional signal.
14:10 - 14:25

BreakWe-D: Optical Memory III
Presider: Osamu Matoba (Kobe University, Japan)
We-D-01
14:25

InvitedAll-optical quantum memories towards photonic
quantum information processing
MamoruFurusawa

Endo, Jun-ichi

Yoshikawa, Akira

The University of Tokyo (Japan)
One of the most promising approaches to realize
fault-tolerant universal quantum computation is theuse of a travelling electromagnetic field of light. We
review how to implement an optical quantum
computer with all-optical quantum memories.
We-D-02
14:50

InvitedDynamicsampling
iterativephasereconstruction for holographic data storage
Xiao Lin, Ruixian Chen, Jianying Hao, Changyu
Yu, Qijing Zheng, Xianying Qiu, Suping Wang,
Kun Wang, Xiaodi Tan
Fujian Normal University (P.R.China)
We proposed a method of dynamic sampling
iterative phase reconstruction for holographic datastorage. Compared with traditional method thatusing same Fourier intensity pattern in every
iteration, the bit-error-rate is lower and the iteration
number is fewer by using the dynamic sampling
method.

We-D-03
15:15

InvitedA recording method for SQAM signal inholographic memories and improvement of areal
information density
SatoshiHonma, Haruki
Nakajima

Watanabe, Yugo

University of Yamanashi (Japan)
A two-step exposure method and interleaved phasepages are investigated for recording SQAM withmulti-level phase and amplitude in holographicstorage.
This paper clarifies the relationshipbetween the number of pixels of SLM used torepresent a symbol, the amount of information perpage, and the areal recording density.

We-D-04
15:40

InvitedRecordingStrategiesofSelf-ReferentialHolography Toward More Flexible Inter-PixelInteractions
Masanori Takabayashi
Kyushu Institute of Technology (Japan)
Self-referential holography is a holographic data
recording method based on inter-pixel interactionsof reading beam which can be controlled byrecording conditions. We present some recording
strategies, which will lead to multi-level datapage
recording and clarification of recording conditions
for high quality readout etc.

16:05 - 16:20

Break

We-PD: Post Deadline Papers
Presider: Shinya Hasegawa (Hiroshima Institute ofTechnology, Japan)
We-PD-01
16:20

High-Speed Three-Dimensional Object Profiling
Using FMCW Optical Ranging System byContinuous Scanning of Laser BeamTomoharu Konishi, Koichi Iiyama
Kanazawa University (Japan)
High-speed object profiling is realized by using theFMCW optical ranging system. The Galvanoscanner for laser beam scan is continuously scanned
to avoid response delay of the Galvano scanner. Asa result, the profiling time is 3 times faster than thesystem using a step-scanned Galvano scanner.

We-PD-02
16:35

Spatially varying polarization fringe projection
methodfor
three-dimensional
shapemeasurement
Nobukazu Yoshikawa, Naoya Hasegawa, Shusuke
KobayashiSaitama University (Japan)
We propose a fringe projection 3D measurement
system using a spatially varying polarization fringe
pattern. We develop a 4-step phase-shifting method
using the phase-shifted angle of polarization maps
to reconstruct the object phase.

We-PD-03
16:50

Effect of Fiber Profile Parameters on Sensitivityof the Tapered Optical Fiber Sensors
Behnaz Fatehi Raviz, Mohammad Vahedi
Iran University of Science and Technology (Iran)
We have proposed a study on the effect of the fiber
profile parameters on the sensitivity of the tapered
optical fiber sensors. We believe that by increasing
the taper angle and waist-length, the sensitivity ofthe sensor can be improved. The effect of angle is23.3 times greater than the effect of length, basedon our experimental tests.

17:05 - 17:25

Awards & Closing Remarks

Takanori Nomura (Wakayama University, Japan)
Akinori Furuya (Tokushima Bunri University, Japan)